# How we built our infrastructure fail-over checklist

- **期号**: SRE Weekly Issue #416（2024-03-17）
- **作者**: Gauthier François — Doctolib
- **链接**: https://medium.com/doctolib/how-we-built-our-infrastructure-fail-over-checklist-5b31d4623136

## 简介

Right in the middle of migrating from one datacenter to an HA pair of new datacenters, one of the new ones failed.  They had to quickly do a partial rollback of the migration to ride out the outage.

## 正文

> ⚠️ 抓取失败：HTTP 403